Pigment. Golden-brown, variable: sides of keel sometimes with 4 conspicuous spots – one pair laterally each side of tail base, one pair about level with midpoint of excretory vesicle, laterally about midway between midline and margin; some with regions on anterior edge of expanded hindbody; some with region anterior to ventral sucker. In life, orange brown shading on anterior part of hindbody and keel; small orange brown spots on posterior hindbody sometimes present.

Penetration glands. Three pairs of long, elongate and folded saccular glands, extend from posterior margin of ventral sucker to excretory vesicle, longest often extending almost half length of excretory vesicle; ducts run anteriorly on lateral edges of body. Central glands not evident in forebody.

Behavior. Naturally emerged cercariae are free-swimming and swim actively toward light where they orient themselves facing toward the light source. When swimming, the hindbody is folded ventrally and the forebody is contracted longitudinally; the tail lashes from side to side for movement ( Figure 2 c
View Figure
). When resting, the hindbody is slightly flexed ventrally; tail extends forwards and angled dorsally from hindbody, may be held close to hindbody ( Figures 2 d
View Figure
). When first emerged, cercariae swim actively towards light and frequently rise to surface; then settle characteristically on their side. After about 24 hours, cercariae become less active, decaudation may occur and they start to die. The cercariae never encyst.